"While I do have substaintial concerns that these documents may not be sufficient to allow the Committee to complete its investigation, delivery of these documents to the Committee before the scheduled consideration of contempt at 10:00 a.m. on Wednesday, June 20, 2012, would be sufficient to justify the postponement of the proceeding to allow for the review of materials," Issa wrote.

"It is in the best interest of all parties to bring this matter to a final resolution by avoiding a confrontation that involves contempt and we believe that the provision of documents must be part of an agreement that brings this matter to a close," she said. "We trust that Chairman Issa shares our interest in doing so and will work with us in a productive and good faith manner to achieve that end."